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In this paper, using the theory of fuzzy logic and questionnaire surveys, a hierarchical criterion system with three layers and twenty factors was established for fuzzy comprehensive evaluation of functions in the Jiugongshan Nature Reserve.

运用模糊数学理论和问卷调查方法,建立3层20个指标的评价体系,对九宫山自然保护区的功能进行模糊综合评价和贴近度分析。

This thesis gives detailed intelligent introduction to the research of intelligent integrated experiment station of diesel engine, including working principles, performance features, the design of system hardware and software etc.

本文对柴油发动机智能综合试验台的研制作了详尽的介绍,包括工作原理、性能指标、系统硬件和软件的设计等。

Methods: Determining paeoniflorin content by high performance liquid chromatography measurement conditions: mobile phase of acetonitrile -0.4% phosphoric acid solution (volume ratio 13∶87; detection wavelength 230 nm; flow rate 1.0 mL/min; and column temperature 25℃; and determining polysaccharide content by anthrone-sulfuric acid method. The extraction procedure of Langchuangling granule was measured, and the evaluated indexes were the rate of dry extra, contents of the paeoniflorin and the total polysaccharide with L9 (34) orthogonal test and preferential treatment of data.

采用高效液相色谱(high performance liquid chromatography,HPLC)法测定芍药苷含量[测定条件:流动相为乙腈-0.4%的磷酸水溶液(体积比为13∶87);检测波长230 nm;流速1.0 mL/min;柱温25℃];采用硫酸-蒽酮法测定总多糖含量,并以干浸膏得率、总多糖含量和芍药苷含量为指标,采用L9(34)正交实验,用综合评分法处理数据优选水提取工艺。

Thus, 8 groups of reliability indexes are derived which are thereliability indexes of primary and adjunctive combination under normal and intensivecar operation status when mobile load effect belongs to extreme value typeⅠdistribution and normal distribution respectively.

其中,分别考虑了荷载的基本组合和附加组合,汽车荷载服从正态分布和极值Ⅰ型分布,汽车运行一般运行状态和密集运行状态,然后经过综合比较分析得出了钢桥常用的两种钢材在强度极限状态下的目标可靠指标建议值。

Phase 1 started with field pea followed by spring wheat whereas phase 2 started with spring wheat followed by field pea.The objectives of this thesis are:1 to quantitatively analyze effects of soil chemical,physical and biological properties on soil quality and productivity under different tillage systems and the driving factors for the changes of soil quality under tillage in a long-term,2 to select the best soil quality assessment indicators,and 3 to establish soil quality assessment models that are suitable for the erodible environment of semi-arid region on the Loess Plateau.

通过分析3个轮作周期不同耕作方式下土壤理化性质、生物性质和生产力对土壤质量的影响,阐明长期耕作过程中土壤质量的演变特征及其驱动因子,筛选出适宜于黄土高原半干旱区侵蚀环境下土壤质量评价的代表性指标;并综合前人的研究,结合区域特点,建立适宜于黄土高原半干旱区侵蚀环境的土壤质量评价模型。

Using numerical simulation technology and method of orthogonal experiment design and single factor rotating optimization, this thesis makes a study of "lost core injection ", thus achieve the optimization of the parameters of molding process, to offer basic reference when developing production technology and mould of the plastics intake manifold. Based on the study of the status in quo and development trend of weight reduction on automobile, the application of plastics to automobile and intake manifold, then under the guidance of theory model and numerical simulation technology in the process of high polymer material, this thesis launches flowing main research work: First of all, on the basis of the three-dimensional model of the part and finite element net model, several designs of gating and running system are numerically simulated and analyzed via MPA of Moldflow.

本文在对当今汽车轻量化、零部件塑料化以及的汽车进气歧管塑料化的发展现状和发展趋势进行了研究和简要介绍,然后在高分子材料成型过程中的理论模型和数值计算方法的指导下,展开主要的研究工作:首先,在零件三维模型和有限元网格模型的基础上,使用Moldflow 的MPA模块对塑料进气歧管的多个浇注系统设计方案进行数值模拟,通过分析各个方案的充填质量、熔接线位置及数量等指标,得到了综合质量较高的4 个进料口的浇口位置及半限制型浇口大小的浇注系统。

Then, the second hierarchy fuzzy relation matrix is used to make the first level fuzzy evaluation after each hierarchy power vector is fixed.

通过层次分析法对机场目标指标体系进行划分,采用二级模糊综合评判模型实现对其毁伤效果的评估。

The indication of MD and HD, according to the fuzzy comprehensive evaluation of vegetation and soil, at Leymus chinensis +forb community, were 0.7426 and 0.5611, respectively, and at Stipa baicalensis + Leymus chinensis community, were 0.7702 and 0.59804, respectively.

根据植被与土壤相结合为指标体系的模糊综合评价得出的指示度分别为;羊草+杂类草群落中度退化区为0.7426、重度退化区为0.5611;贝加尔针茅+羊草群落中度退化区为0.7702、重度退化区为0.5980。

The main purpose of this paper was to explore the methods of drought tolerance evaluation,and to evaluate the relationships between some agronomic traits and physiological indicators with drought-tolerance in foxtail millet.

探讨作物抗旱性分析评判的方法,对谷子主要农艺性状和部分生理指标与抗旱性之间的关系进行综合评价。

It is an effective way to comprehensively evaluate the drought tolerance of foxtail millet by Principal Component Analysis and Fuzzy Clustering,which not only could avoid the bias and the instability of single factor analysis,but also reflect the relationship between different drought tolerance related traits and drought tolerance in foxtail millet better.

利用主成分分析,结合模糊聚类的方法进行谷子的抗旱性综合评价,不仅可以避免单一指标的片面性和不稳定性,而且可以较好地揭示谷子抗旱相关性状与其抗旱性的关系。

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